A Randomized Study Evaluating the Role of Ultra-sound Guidance When Drawing Radial Arterial Blood Samples Previous studies have demonstrated that an experienced ultrasound operator is able to efficiently perform radial arterial puncture on patients where an initial operator failed to puncture ...

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Ultrasound Guidance for Radial Arterial Blood Sampling The investigators aim to determine if ultrasound guidance results in improved technique when drawing blood via a radial artery puncture.

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